Natural Hazards and Earth System Science www.nat-hazards-earth-syst-sci.net 1561-8633 1684-9981 8 6 2008 10.5194/nhess-8-1229-2008 http://www.nat-hazards-earth-syst-sci.net/8/1229/2008/ http://www.nat-hazards-earth-syst-sci.net/8/1229/2008/nhess-8-1229-2008.html http://www.nat-hazards-earth-syst-sci.net/8/1229/2008/nhess-8-1229-2008.pdf 1229 1236 2008-11-24 Similar behaviors of natural ELF/VLF ionospheric emissions and transmitter signals over seismic Adriatic regions M. Y. Boudjada mohammed.boudjada@oeaw.ac.at K. Schwingenschuh H. K. Biernat J. J. Berthelier J. Blecki M. Parrot M. Stachel Ö. Aydogar G. Stangl J. Weingrill Space Research Institute, Austrian Academy of Sciences, Graz, Austria Institute of Physics, Department of Theoretical Physics, Karl-Franzens-University Graz, Austria Institute of Physics, Department of Geophysics, Astrophysics and Meteorology, Karl-Franzens-University Graz, Austria Centre d'Etude des Environnements Terrestre et Planétaires, Observatoire de Saint-Maur, France Space Research Centre PAS, Warsaw, Poland Laboratoire de Physique et Chimie de l'Environnement, Orléans, France Federal Office of Metrology and Surveying, Vienna, Austria We report on the analysis of ELF/VLF emissions observed by the Instrument Champ Electrique (ICE) experiment onboard the DEMETER micro-satellite. We consider principally selected seismic events reported by Molchanov et al. (2006). These authors studied the VLF signals radiated by ground transmitters and received on board the DEMETER micro-satellite. 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